The WikiLeaks founder tried to cancel his contract for the memoir after reading a first draft, but publishers Canongate Books went ahead with its publication today against his wishes.

In the book, Assange, 40, suggests that rape allegations against him could have been concocted by the US government and says he knew as far back as 2007 that "forces" would eventually trap him.

He dismisses claims that he sexually assaulted two women in Sweden in August last year, writing: "I may be a chauvinist pig of some sort but I am no rapist."

Assange condemned Edinburgh-based Canongate's publication of the book, billed on the cover as an "unauthorised autobiography", describing it as a case of "screwing people over to make a buck".

He said the published memoir was a "work in progress" written by his Scottish ghost-writer Andrew O'Hagan, based on interviews and stressed it was "entirely uncorrected or fact-checked by me".

In a strongly-worded statement, he added: "I will have to buy 'my autobiography' in order to learn the extent of the errors and inaccuracies of the content of the book, but the damage is done."

Assange, an Australian former computer hacker currently on bail in Britain as he fights extradition to Sweden on the sexual assault charges, made headlines around the world with revelations from secret US military files and diplomatic cables released by his controversial whistle-blowing website WikiLeaks.